My dream has always been to get a graduate degree, but my ornithology career was derailed by physical fitness problems and my bipolar...

I've been out of work for a long time but I saw an ad for a local job doing plant research... Now plants is a secondary interest of mine and my past research involved some plant stuff too...

But there is such a huge gap in my work history how do I explain it??? Now my bipolar isn't obvious and is pretty well managed, but my autism is pretty obvious but so is my intelligence so I don't think it's an issue... But I'm obviously overweight and if there is any type of physical labor involved with the job I might be in trouble...

Tips???